[PATCH 08/12] pcie: designware: Fix IO transfers

[Jagan Teki]

On Wed, Dec 11, 2013 at 3:33 PM, Marek Vasut <marex at denx.de> wrote:
> On Wednesday, December 11, 2013 at 10:38:33 AM, Mohit Kumar wrote:
>> From: Pratyush Anand <pratyush.anand at st.com>
>>
>> pp->io_base which is the input of the outbound IO address translation
>> unit should be the cpu address, it was programmed wrongly to realio
>> address.
>>
>> We should pass global_io_offset rather than sys->io_offset to
>> pci_ioremap_io, so we map the new window into the first available spot
>> in the Linux view of the I/O space.
>>
>> We must also pass cpu address instead  of realio address to
>> pci_ioremap_io.
>>
>> This patch fixes above issue. It has been tested with Lecroy PTC in AIC
>> mode and Pericom PI7C9X2G303EL PCIe switch, which does not work
>> otherwise.
>>
>> Signed-off-by: Pratyush Anand <pratyush.anand at st.com>
>> Tested-by: Mohit Kumar <mohit.kumar at st.com>
>> Tested-by: Tim Harvey <tharvey at gateworks.com>
>> Cc: Arnd Bergmann <arnd at arndb.de>
>> Cc: Marek Vasut <marex at denx.de>
>> Cc: Richard Zhu <Hong-Xing.Zhu at freescale.com>
>> Cc: linux-pci at vger.kernel.org
>> Cc: spear-devel at list.st.com
>
> Acked-by: Marek Vasut <marex at denx.de>
>
> Best regards,
> Marek Vasut
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Acked-by: Jagannadha Sutradharudu Teki <jagannadh.teki at gmail.com>

-- 
Thanks,
Jagan.
--------
Jagannadha Sutradharudu Teki,
E: jagannadh.teki at gmail.com, P: +91-9676773388
Engineer - System Software Hacker
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